[sheepdog] Call to sd_truncate()

[Liu Yuan]

On Thu, Dec 12, 2013 at 02:10:19PM +0100, Hadrien KOHL wrote:
> Well, this is a be unclear to me. On the
> wiki<https://github.com/sheepdog/sheepdog/wiki/Getting-Started#create-a-vm-image>
> it
> says that to enjoy the qcow2 feature I have to create it using the -f qcow2
> switch.
> Basically, I want to use copy on write and snapshot features, and I assumed
> I needed the cow2 format to do so. I couldn't find any clear explanation on
> how integrated is sheepdog with qcow2, or how the snapshot/cloning works
> with and without the cow2 format.
> 
> I am going to try without cow2 format.
> 

I wrote a wiki page for it, hope it helps. See to:

https://github.com/sheepdog/sheepdog/wiki/Which-Format-of-QEMU-Images-Should-I-Run

Thanks
Yuan